Polytetrafluoroethylene (PTFE), commercial name “Teflon,” films prepared by catalytic chemical vapor deposition (Cat-CVD), often called “hot-wire CVD,” are deposited on various cloths of cotton, cotton denim, nylon, and polyester. After deposition on such cloths, they show super water-repellent property without impairing breathability. The whole surface of fibers of these cloths is completely covered with PTFE layers which form reticulated sharp convex–concave network structures with a size of a few micrometers or less in pitch. The super water-repellent property can be seen even at the back side of the cloths when PTFE films are deposited only at the front side.
Super water-repellent treatment of various cloths by deposition of catalytic-CVD polytetrafluoroethylene films
Hideki Matsumura, Mai Mishiro, Michihisa Takachi, Keisuke Ohdaira; Super water-repellent treatment of various cloths by deposition of catalytic-CVD polytetrafluoroethylene films. J. Vac. Sci. Technol. A 1 November 2017; 35 (6): 061514. https://doi.org/10.1116/1.4999236
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